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Department of Energy: Facility Energy Decision System
The Facility Energy Decision System (FEDS) is an easy-to-use building energy efficiency software tool that quickly and objectively identifies energy efficiency improvements that maximize life-cycle savings.
- Models energy and cost performance of heating, cooling, ventilation, lighting, motors, plug loads, building shell, and hot water systems, plus central plants and thermal loops.
- Calculates energy consumption and electrical demand for each technology, end use, building, and the entire campus or installation.
- Evaluates thousands of candidate energy efficiency options via a site optimized life-cycle cost minimization process.
- Reports investment requirements, net present value, and payback period, plus pre- and post-retrofit energy consumption and costs, and air emissions impacts including greenhouse gases.